英语翻译我是****的工作人员,我们德国公司的key Account manager Frank 将于11月27日到达成

I am xx from ****.Frank,our Key Account Manager in Germany,will arrive in Chengdu on November 27.Will you be available to meet us on November 28 so that we can have a brief discussion for a better cooperation later / in future.Thanks.
没有照楼主的直译,根据我的语感做了小小的改动.

I'm the employee of xxx, Our key account manager Frank from Gemany Company will come to Chengdu on Nov.27. Do you have time to jion us a meeting on Nov.28, to improve our further cooperation, Thank you

I am xx from xxx, our Key Account Manager Frank will arrive at Chengdu on November 27 from Germany. We are looking forward to a meeting with you on November 28 to discuss our futher cooperation, would you please let us know if the time is confortable with you? Many thanks!
Yours xx.

I am **** ’s worker，key Account manager Frank --- From our Germany company ，will arrive Chengdu on November 27th ，I wonder if you would have time to have an interview with us on November 28th ，thereby it can be more beneficial to our further cooperation ! Thanks !

不知道标不标准，参考参考吧！